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ATOC1060 Exam 1

# ATOC1060 Exam 1 - ATOC1060 Exam 1 1:14:00 PM ATOC 1060...

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ATOC1060    Exam 1 24/02/2008 15:14:00 ATOC 1060: Review guide for exam 1 Section 002 NOTE: Two copies of the textbook are available as reserve material in the Math- Physics Library (in Duane, one floor up from the classroom) Exam 1 will cover lectures 1-12, HW1 and HW2, and the corresponding chapters of the textbook that are covered by the lectures. We will not test the content of Lecture 11, which is the guest lecture. For lecture 12, exam 1 will cover the “Coriolis effect”, but will NOT include the concepts of “geostrophy” and “geostrophic wind”. The exam questions are multiple choices. 1. Concepts and laws Understand the concepts and laws. You are not required to memorize the exact words and numerical values of the concepts we have covered, but you are required to fully understand them. For example: Greenhouse effect, global warming, glacial and interglacial periods, buoyancy, positive buoyancy, neutral buoyancy, negative buoyancy, ITCZ, Hadley cell, the Wien’s law, Stefan-Boltzmann law, etc. Buoyancy is the tendency of an object to float in a fluid. Buoyancy is controlled by the differences in density between the object and the fluid where density is given by the mass of a substance within a unit volume. If we begin with the balloon partially inflated , it will contain a certain number of air molecules. As these are heated, the number of molecules does not change, but they move faster, increasing the pressure on the interior of the balloon; this causes the balloon to expand. We now have the same number of air molecules as before, but they occupy a greater volume. This means that the density of the air must decrease. Because the air in the balloon is less dense than the air surrounding it, the balloon becomes positively buoyant, and it rises. The balloon will continue to rise until the density of the air outside the balloon matches that of the inside (neutral buoyancy). If the air in the balloon is more dense than the surrounding air, the balloon would have a negative buoyancy, and it will sink. 2. Interpretation of charts (figures)

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Understand the figures. You should understand and be able to interpret figures and charts. 3. Processes You should be able to explain some physical processes. For example, how are Hadley Cells formed? How are the northeasterly and southeasterly trades are formed? 4. Example questions Below are some example questions. The exam, however, will cover all materials in lectures 1-12 (except for the guest lecture) as mentioned above, and is not limited to the following questions. 1) What are greenhouse gases? They are gases that warm a planets surface by absorbing outgoing infrared radiation-radiant heat-and reradiating some of it back toward the surface.
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